17 Protons
18 Neutrons
A chloride ion (Cl⁻) has the same number of protons as a neutral chlorine atom, which is 17. This is because the number of protons, which defines the element, does not change when the atom gains or loses electrons to form an ion. Therefore, a chloride ion has 17 protons.
Chlorine has 17 protons and an atom of Chlorine would have 17 electrons. However a Chloride Ion will have one more electron ie 18 electrons and will be negatively charged.
A NaCl (sodium chloride) atom contains one sodium (Na) atom and one chlorine (Cl) atom. Sodium has 11 protons and chlorine has 17 protons. They bond together through an ionic bond to form the compound sodium chloride.
Protons = 17, electrons = 18There are two isotopes differing in neutron number only :Cl-35 (75%) having 35-17= 18 neutronsCl-37 (25%) having 37-17= 20 neutrons
There are 18 protons in an Aragon atom.
chloride ion is formed when chlorine atom adds one electron. Chloride ion thus has 17 protons and 18 electrons.
Chlorine has: 17 Protons 17 Electrons (in a neutral atom i.e. not an ion) (Isotope Mass Number - 17) is the number of Neutrons.
An atom of copper has 29 protons.
Both a chloride ion and a chloride atom contain a negative charge due to having gained one electron. Additionally, both forms of chlorine have a total of 17 protons in their nucleus.
An atom of carbon has 6 protons.
An atom of chlorine has 17 protons.
In calcium chloride, there are 20 protons (from calcium), 20 electrons (neutral atom), and varying number of neutrons depending on the isotope of calcium used. Chloride ions have 18 electrons each, giving the compound a charge of -1.